|Publication number||US5726684 A|
|Application number||US 08/686,856|
|Publication date||10 Mar 1998|
|Filing date||26 Jul 1996|
|Priority date||26 Jul 1996|
|Publication number||08686856, 686856, US 5726684 A, US 5726684A, US-A-5726684, US5726684 A, US5726684A|
|Inventors||Joseph H. Blankenship, Ronald A. Rush, Jr.|
|Original Assignee||Ncr Corporation|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (10), Referenced by (83), Classifications (11), Legal Events (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The invention relates to input devices for use with portable computers, and more specifically to convertible mouse-trackball pointing devices for use with portable digital computers.
Mouse and trackball pointing devices are commonly used with desktop and portable digital computers to input user selections and information. Such uses include activation of menus, selection of menu choices, blocking text and moving text, as well as drawing and reshaping lines and objects.
Mice are well known in the art and include a ball that can rotate over two orthogonal axes as the mouse housing (or simply "mouse") is moved over a plane surface. As the mouse is moved by the computer user, the ball rotates causing x-axis and y-axis position sensors within the mouse to indicate the direction, displacement, and rate of ball movement. Typically, ball movement frictionally rotates x-axis and y-axis members, whose rotation is sensed using optical encoders. The encoders output a digital signal that is coupled to a microprocessor unit within the mouse that computes coordinate and velocity data. This data is then coupled to a computer through a cable, or, in wireless fashion, using infra-red ("IR") or radio frequency ("RF") energy. In response to this data, circuitry within the computer causes the cursor on the computer display to move. Cursor movement tracks the mouse movement, and the cursor moves in the same direction and with a velocity proportional to movement of the mouse. In a drawing program, for example, mouse motion can reposition the cursor so as to draw or reshape an object, in addition to making menu selections.
For desktop computer users, there are no serious drawbacks associated with the use of a mouse. But while mice are convenient to use, they do require several square inches of flat surface over which they are rolled by the user. For portable computers such as laptops, mice can be very useful, but such computers are often used in environments in which flat space over which to operate a mice is at a premium. For example, it can be difficult to use a mouse on an airline food tray in the small area that is available when a laptop computer is placed on the tray.
Alternatively, trackball devices are also known in the art for use with computers. A trackball is somewhat analogous to an upside down mouse, in which a trackball protrudes from an uppermost surface of the device. The trackball is rotated by a user's hand while the trackball housing remains stationary. As the trackball rotates, x-axis and y-axis position information is generated such that the trackball outputs a signal that moves the cursor on the computer display. Because the trackball housing remains stationary, trackball devices require relatively little surface area for use. Trackballs have become especially popular with laptop computer users, and frequently are built into the laptop keyboard area. As such, a trackball-equipped laptop computer requires no extra surface area. However, for some applications, a user may prefer using a mouse. In drawing programs, for example, a mouse can often be used more rapidly than a trackball in drawing images.
Combined mouse-trackball pointing devices are known in the art. U.S. Pat. No. 5,063,289 to Jasinski discloses one such device in which the unit is provided with a hinged cover that can be retracted or extended to help change from mouse to trackball mode. Jasinski's hinged construction appears to make his unit somewhat unsuitable for inclusion within a laptop computer keyboard, and further requires the user to unhinge the unit in changing modes. U.S. Pat. No. 5,280,276 to Kwok discloses a combined mouse-trackball unit in which a user-operated handle is activated to convert the unit from mouse to trackball mode. However, Kwok's mechanism requires the ball to project through the upper or lower housing surface, depending upon the mode of use, and does not appear to lend itself to inclusion within the keyboard of a laptop computer.
In short, there is a need for a built-in pointing device on a laptop computer that combines the best features of a mouse and a trackball, and that may be converted from a mouse to a trackball and vice versa. Such a unit should be stored within the keyboard for use as a trackball, but should be readily removable for use as a mouse.
The present invention provides such a pointing device.
The present invention provides a laptop computer with a mouse/trackball pointer unit that is releasably mountable within a cavity on the laptop keyboard. Coupled to the laptop computer by a retractable wire or by infrared or radio frequency wireless techniques, the pointer unit is used as a trackball when disposed within the keyboard cavity. User-operable switches are accessible from the trackball surface of the unit. However, when work space permits, the pointer unit may be removed from the laptop cavity, inverted and used as a mouse. Additional user-operable switches are also accessible from the mouse upper-surface of the pointer unit.
The pointer unit housing has one opening through which the rotatable ball protrudes, regardless of whether mouse mode or trackball mode is to be used. One or more sense switches automatically ascertains which mode is to be used from the relative orientation of the pointer unit housing. In the mouse mode, a sense switch decouples the trackball surface accessible user-operable switches to prevent their inadvertently signaling as the pointer unit is moved about.
A pressure cap mechanism urges the trackball toward an opening in the trackball surface of the unit. A differential urging force may be applied to the trackball depending upon whether mouse mode or trackball mode operation is presently being used. Such differential urging force may be manually switched by a user-controlled lever, or may be automatically invoked using a sense switch that couples or decouples electrical operating potential to a solenoid coupled to a ball repositioning member.
Other features and advantages of the invention will appear from the following description in which a preferred embodiment has been set forth in detail in conjunction with the accompanying drawings.
FIG. 1 depicts a mobile computer equipped with a convertible mouse/trackball pointing device, according to the present invention;
FIG. 2 depicts the mouse/trackball pointing device of FIG. 1 removed from the laptop computer;
FIG. 3 depicts the mouse/trackball pointing device of FIG. 2 inverted for use as a mouse;
FIG. 4 is a partial cutaway perspective view of the mouse/trackball device of FIG. 3;
FIG. 5 is a sideview of the mouse/trackball pointing device of FIG. 4, taken along section line A--A.
FIG. 1 depicts a laptop computer 10 that includes a typically liquid crystal display ("LCD") 20 portion attached by a hinge mechanism 30 to a lower computer portion 40 that includes switches and operator keys 50 and a convertible mouse/trackball pointing unit 60, according to the present invention. Typically within lower portion 40, computer 10 includes a central processor unit ("CPU"), persistent and volatile memory, and a battery power supply.
Pointing unit 60 has an upper housing portion 70 from which a spherical trackball 80 protrudes through a circular opening 85. First and second user-operable switches 90, 100 are positioned for operation on housing portion 70, and preferably protrude through openings 95, 105 in the housing portion. As trackball 80 is moved by the user's hand, the cursor 110 on LCD 20 moves accordingly. Switches 90 and 100 can enable the user to activate or deactivate operation of pointing unit 60. The nomenclature "90, 100" will refer both to the switching mechanisms themselves, and to the protruding depressible surface that a user presses against to activate the switch.
FIG. 2 depicts pointer unit 60 removed from cavity 120 in lower portion 40 of computer 10. In general, the housing perimeter of unit 60 is substantially free of projections or indentations that might interfere with the insertion or withdrawal of unit 60 from cavity 120.
In the embodiment shown, electrical connections between pointer unit 60 and computer 10 are made using a self-retracting cable 130. Alternatively, signals between pointer unit 60 and computer 10 could be made coupled using wireless techniques, including infrared ("IR"), and radio frequency ("RF") transmission. In a wireless embodiment, send/receive transducers 140 would be disposed at locations that included a location within cavity 120 (for transmission when unit 60 is used while docked within the cavity), as well as locations on preferably at least two surfaces of the computer 10. Similarly, one or more transducers 140 would be mounted on the housing 150 of unit 60.
When unit 60 is used as a trackball, the unit may most conveniently be retained within cavity 120, as shown in FIG. 1, although trackball operation could occur with unit 60 removed from cavity 120 as shown in FIG. 2. Several techniques may be used to removably retain unit 60 within cavity 120. For example, a biased detent mechanism 160 within cavity 120 may frictionally engage a detent-shaped groove 170 in the sidewalls 180 of unit 60. A biased release mechanism 190, when depressed by a user releases the detent mechanism 160 from groove 170, permitting unit 60 to be lifted out of cavity 120.
Alternatively, the lower surface 200 of unit 60 could include an embedded or painted metal plate 205 that is held within cavity 120 by a magnetic plate 210 at the bottom surface of cavity 120. Of course, the field produced by such a magnetic plate must not be so large as to interfere with persistent storage devices within or adjacent computer 10.
FIG. 3 depicts unit 60 inverted (relative to FIGS. 1 and 2), and deployed for use as a mouse atop an optional mouse-type pad 220. To minimize any drag, preferably the outer surfaces of switches 90 and 100 are a smooth material and, as noted, these surfaces can retract within the surrounding openings 95, 105.
The now upper surface 200 of pointer unit 60 is provided with at least one and preferably two user-operable switches 90' and 100". Electrically, switch 90' may be coupled in parallel with switch 90, and switch 100' may be coupled in parallel with switch 100. Because a somewhat rectangular shape is preferred for a mouse unit, switches 90' and 100' are disposed near a narrower rather than a wider side 180. As such, there is no requirement that switches 90', 100' on surface 200 physically overlie switches 90 and 100 on surface 70. In fact, in the embodiment shown, there is a 90° rotation between the two sets of switches.
In the partial cutaway view of FIG. 4, two sense switches S1 and S2 are shown. By "sense switch" it is meant that switch S1 and S2 can sense whether surface 200 is uppermost, in which case unit 60 is in a mouse mode, or whether surface 70 is uppermost, in which case unit 60 is in a trackball mode. Switches S1 and S2 may be implemented in several ways, including using mercury switches, Hall-effect type devices, and the like.
In FIG. 4, wire 230 from trackball switch 90 goes to terminal 235 of switch S1, and wire 240 from trackball switch 90 goes to terminal 245 of switch S2. Wire 250 is coupled from terminal 255 of switch S2 to switch sense circuitry 260, and wire 270 is coupled from terminal 275 of switch S1 to circuitry 260. However, in the orientation shown, no electrical contact is made between terminals 235 and 275 on switch S1, or between terminals 245 and 255 of switch S2, because the mercury is at the bottom of the respective switches. (By contrast, if unit 60 in FIG. 4 were inverted into trackball position, mercury within switch S1 would coupled together terminals 235 and 275, and mercury within switch S2 would couple together terminals 245 and 255.) Thus, in the mouse configuration shown in FIG. 4, sense switches S1 and S2 decouple trackball switches 90 and 100 from circuit 260.
Consider now the operative and functional action of mouse switches 90' and 100'. As shown in FIG. 4, switch 90' is connected by wire 280 to terminal 285 of switch S1, and switch 100' is connected by wire 290 to terminal 295 of switch S2. Wire 300 connects terminal 305 of switch S2 to circuitry 260, and wire 310 connects terminal 315 of switch S1 to circuitry 260. In the mouse mode configuration shown, mercury within switches S1 and S2 is at the bottom of each switch, and terminals 285 and 315 on switch S1, and terminals 295 and 305 on switch S2 are coupled together. Thus, in the configuration shown in FIG. 4, although the trackball switches 90, 100 are decoupled from circuitry 260 by the sense switches S1, and S2, the mouse switches 90' and 100' are coupled to circuitry 260.
From the foregoing, it will be appreciated that sense switches S1, S2 prevent any mouse movement of unit 60 from depressing either of switches 90 or 100 such that switch activation is registered within circuitry 260. Thus, in sliding unit 60 leftward, for example, even if switch 90 should be depressed, perhaps by the underlying table top or mouse pad, no electrical action results because sense switch S1 decouples switch 90 when unit 60 is in the mouse mode.
FIG. 5 is a sectioned sideview of unit 60, and shows an embodiment of unit 60 that includes a wireless module 320 coupled to transducers 140 as well as to a microprocessor unit 330. Microprocessor 330 is also coupled by wires 335, 340 to x-axis and y-axis position indicators 350, 360. As is known in the art, indicators 350, 360 output positional information at a rate proportional to movement of ball 80. Microprocessor unit 330 processes this information, which it provides to the host computer either through a cable (e.g., cable 130 in FIG. 1), or through a wireless mechanism, such as module 320 and transducers 140.
In contrast to prior art convertible devices such as that disclosed by Jasinski, the present invention includes a non-hinging housing 370 that, unlike the housing disclosed by Kwok, provides but a single opening 85 for the ball 80. A pressure cap 380 urges ball 80 into opening 85, through the use of springs 390 or similar mechanical biasing devices. Pressure cap 380 has the shape of a fraction of a hollow sphere and is sized to overlie a fraction of the ball 80. To minimize friction with ball 80, the concave inner surface of cap 380 is preferably a smooth, relatively frictionless material, such as Teflon™ material, nylon, or the like.
In trackball mode, cap 380 and springs 390 should exert sufficient upward force to maintain at least a portion of ball 80 within opening 85, as opposed to allowing gravity to permit the weight of ball 80 to cause ball 80 to fall too far into the interior of housing 370.
If desired, a bimodal ball repositioning member may be used in lieu of biased cap 380. By "bimodal" it is meant that in the mouse configuration shown in FIG. 5, the repositioning member should exert a first magnitude of bias force, and in the trackball configuration of FIG. 2, the repositioning member should exert a second, greater, magnitude of bias force. Such repositioning could be manually invoked, with a user-operable lever that preferably does not substantially disturb the perimeter outline of unit 60. Such a repositioning member is shown generically as element 400 in FIG. 5.
Alternatively, in a configuration in which a cable is used (e.g., see FIGS. 2 and 3), electrical energy from the host computer could be used to latch or unlatch a solenoid 405 that would automatically reposition the repositioning member 400. A sense switch S3, similar to switches S1, S2, could be used to automatically determine which of surfaces 70 or 200 is uppermost (e.g., whether trackball or mouse mode is presently used). Depending upon the sensed mode, the switch would electrically couple or decouple operating voltage to a latch-type solenoid 405 coupled to the repositioning member 400.
The preferred embodiment has been described with respect to use with a laptop computer. However, it will be appreciated that a suitable cavity 120 could be provided in a standard desktop-type keyboard, and that a single unit 60 could be used to provide trackball/mouse mode operation with a desktop computer, rather than for a laptop computer.
Modifications and variations may be made to the disclosed embodiments without departing from the subject and spirit of the invention as defined by the following claims.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US4939508 *||31 Oct 1988||3 Jul 1990||Emtek Health Care Systems, Inc.||Point and select device|
|US5049863 *||9 Feb 1990||17 Sep 1991||Kabushiki Kaisha Toshiba||Cursor key unit for a computer having a mouse function removably mounted on a keyboard section of a base|
|US5063289 *||9 Oct 1990||5 Nov 1991||Lexmark International, Inc.||Combined mouse and trackball|
|US5063376 *||5 May 1989||5 Nov 1991||Chang Ronald G||Numeric mouse one hand controllable computer peripheral pointing device|
|US5126955 *||9 Feb 1990||30 Jun 1992||Kabushiki Kaisha Toshiba||Manually sweepable apparatus housed in a computer main body|
|US5280276 *||10 Jul 1992||18 Jan 1994||Quickshot (Bvi) Ltd.||Combination mouse/trackball input device|
|US5287090 *||30 Sep 1992||15 Feb 1994||Grant Alan H||Combination mouse and track ball unit|
|US5379054 *||25 Apr 1994||3 Jan 1995||Ascii Corporation||Pointing device|
|US5473346 *||12 May 1994||5 Dec 1995||Pollack; Jordan||Data input device and method|
|US5546334 *||29 Mar 1993||13 Aug 1996||Acer Incorporated||Notebook computer system with a separable trackball|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US5818427 *||17 Aug 1995||6 Oct 1998||Stroemberg; Rolf||Control device for pointing|
|US5859767 *||1 May 1997||12 Jan 1999||Lucent Technologies Inc.||Electronics chassis and method of manufacturing and operating thereof|
|US5917474 *||31 Jan 1997||29 Jun 1999||Logitech, Inc.||Free pivot-arm key plate|
|US5935244 *||21 Jan 1997||10 Aug 1999||Dell Usa, L.P.||Detachable I/O device for computer data security|
|US5982358 *||17 Sep 1997||9 Nov 1999||Micron Electronics, Inc.||Method for providing buttons for use with multiple pointing devices on a laptop computer|
|US5995085 *||9 Oct 1997||30 Nov 1999||Bowen; James H.||Electronic sketch pad and auxiliary monitor|
|US6035350 *||21 Jan 1997||7 Mar 2000||Dell Usa, L.P.||Detachable I/O device with built-in RF/IR functionality to facilitate remote audio-visual presentation|
|US6040820 *||11 Sep 1997||21 Mar 2000||Lg Electronics Inc.||Track ball input device|
|US6044540 *||24 Sep 1998||4 Apr 2000||Lucent Technologies, Inc.||Electronics chassis and methods of manufacturing and operating thereof|
|US6107990 *||17 Sep 1997||22 Aug 2000||Micron Electronics, Inc.||Laptop with buttons configured for use with multiple pointing devices|
|US6181322 *||7 Nov 1997||30 Jan 2001||Netscape Communications Corp.||Pointing device having selection buttons operable from movement of a palm portion of a person's hands|
|US6181325 *||11 Feb 1998||30 Jan 2001||Samsung Electronics Co., Ltd.||Computer system with precise control of the mouse pointer|
|US6219037 *||2 Oct 1998||17 Apr 2001||Samsung Electronics Co., Ltd.||Pointing device provided with two types of input means for a computer system|
|US6222526 *||29 Oct 1998||24 Apr 2001||Quentin J. Holmes||Hand held ergonomic computer controller|
|US6304250||13 Apr 1998||16 Oct 2001||Samsung Electronics Co., Ltd.||Wire/wireless keyboard with pointing device attachable thereto, computer system for use with the same, and related method|
|US6359609 *||20 Mar 1997||19 Mar 2002||Gordon B. Kuenster||Body-mountable display system|
|US6392671||27 Oct 1998||21 May 2002||Lawrence F. Glaser||Computer pointing device having theme identification means|
|US6424335||2 Sep 1998||23 Jul 2002||Fujitsu Limited||Notebook computer with detachable infrared multi-mode input device|
|US6452587||11 Jan 2000||17 Sep 2002||Mitsubishi Electric Research Laboratories, Inc||Cursor controller using speed position|
|US6509890 *||31 Mar 1998||21 Jan 2003||International Business Machines Corporation||Mini-TrackPoint IV pointing device|
|US6545667||8 Sep 2000||8 Apr 2003||David M. Lilenfield||Apparatus for a convenient and comfortable cursor control device|
|US6573843||14 Jul 1999||3 Jun 2003||Micron Technology, Inc.||Snap-on keyboard and method of integrating keyboard|
|US6580420 *||15 Mar 2000||17 Jun 2003||Yanqing Wang||Convertible computer input device|
|US6593911||29 Jun 1999||15 Jul 2003||Micron Technology, Inc.||Infrared cordless mouse with mouse pad/receiver|
|US6606244 *||10 Sep 1999||12 Aug 2003||Saint Song Corp.||Pointing device having computer host|
|US6624808||30 Apr 1999||23 Sep 2003||Micron Technology, Inc.||Sensor system mouse|
|US6628506||22 Apr 2002||30 Sep 2003||Hewlett-Packard Development Company, L.P.||Multifunctional foldable computer|
|US6654234 *||22 Apr 2002||25 Nov 2003||Hewlett-Packard Development Company, L.P.||Multifunctional foldable computer|
|US6657559 *||15 Dec 1998||2 Dec 2003||Jing Li||Mouse with remote control function of infrared ray|
|US6704005||3 Aug 2001||9 Mar 2004||Alps Electric Co., Ltd.||Input device which allows button input operation and coordinate input operation to be performed in the same operation plane|
|US6744421 *||19 Feb 2003||1 Jun 2004||David M. Lilenfeld||Apparatus for convenient and comfortable cursor control device|
|US6873521||24 Jul 2001||29 Mar 2005||Hewlett-Packard Development Company, L.P.||Multiple environment foldable computer|
|US6917357 *||13 Aug 2002||12 Jul 2005||Aiptek International Inc.||Handy mouse with a direction-switch device|
|US7006074||5 Sep 2002||28 Feb 2006||Thomas Peter Chesters||Multimodal pointer method|
|US7173814 *||20 Dec 2002||6 Feb 2007||Cohen Morris S||Notebook computer keyboard system|
|US7209127||18 Mar 2004||24 Apr 2007||Bowen James H||Electronic sketch pad and auxiliary monitor|
|US7266774||23 Jan 2003||4 Sep 2007||International Business Machines Corporation||Implementing a second computer system as an interface for first computer system|
|US7298359||27 Jun 2001||20 Nov 2007||Fujitsu Limited||Notebook computer with detachable infrared multi-mode input device|
|US7330923||21 Mar 2005||12 Feb 2008||Avago Technologies Ecbu Ip (Singapore) Pte. Ltd.||Input devices and methods of operating same|
|US7494351 *||17 Jan 2007||24 Feb 2009||Primax Electronics Ltd.||Connector for attachment of a peripheral device to a computer|
|US7557797||24 Nov 2004||7 Jul 2009||Ludwig Lester F||Mouse-based user interface device providing multiple parameters and modalities|
|US7654459||14 Nov 2005||2 Feb 2010||Avago Technologies Ecbu Ip (Singapore) Pte. Ltd.||Method of capturing user control inputs|
|US7987424||26 Jun 2007||26 Jul 2011||International Business Machines Corporation||Implementing a second computer system as an interface for a first computer system|
|US8432485||18 Dec 2008||30 Apr 2013||Logitech Europe S.A.||Optimized designs for embedding webcam modules with superior image quality in electronics displays|
|US8558794||1 Dec 2009||15 Oct 2013||Koninklijke Philips N.V.||Trackball module|
|US8681130||20 May 2011||25 Mar 2014||Sony Corporation||Stylus based haptic peripheral for touch screen and tablet devices|
|US8749533||20 May 2011||10 Jun 2014||Sony Corporation||Haptic device for carving and molding objects|
|US8773403||20 May 2011||8 Jul 2014||Sony Corporation||Haptic device for position detection|
|US8816956||10 Dec 2004||26 Aug 2014||Bioram Tech L.L.C.||Mouse-based user interface device employing user-removable modules|
|US8917235||14 Nov 2005||23 Dec 2014||Avago Technologies General Ip (Singapore) Pte. Ltd.||User control input device|
|US8956230 *||20 May 2011||17 Feb 2015||Sony Corporation||Haptic device for 3-D gaming|
|US20010033267 *||27 Jun 2001||25 Oct 2001||Darren Kim||Notebook computer with detachable infrared multi-mode input device|
|US20020137477 *||7 Feb 2002||26 Sep 2002||Seiko Epson Corporation||Input system for portable terminal, portable terminal, control unit, and input program for portable terminal|
|US20040145606 *||23 Jan 2003||29 Jul 2004||International Business Machines Corporation||Implementing a second computer system as an interface for first computer system|
|US20040147292 *||8 Oct 2003||29 Jul 2004||Paten Wireless Technology Inc.||Receiver with wireless input device|
|US20040183747 *||18 Mar 2004||23 Sep 2004||Bowen James H.||Electronic sketch pad and auxiliary monitor|
|US20040243314 *||20 Dec 2002||2 Dec 2004||Cohen Morris S.||Notebook computer keyboard system|
|US20050035950 *||23 Sep 2004||17 Feb 2005||Ted Daniels||Portable input device for computer|
|US20050068305 *||30 Sep 2003||31 Mar 2005||Chung-Ping Chi||Allocation structure for wireless cursor transmitter|
|US20050179650 *||24 Nov 2004||18 Aug 2005||Ludwig Lester F.||Extended parameter-set mouse-based user interface device offering offset, warping, and mixed-reference features|
|US20050179651 *||24 Nov 2004||18 Aug 2005||Ludwig Lester F.||Mouse-based user interface device providing multiple parameters and modalities|
|US20050179652 *||10 Dec 2004||18 Aug 2005||Ludwig Lester F.||Mouse-based user interface device employing user-removable modules|
|US20050179663 *||22 Mar 2004||18 Aug 2005||Ludwig Lester F.||Freely rotating trackball providing additional control parameter modalities|
|US20050182567 *||20 Dec 2002||18 Aug 2005||Cohen Morris S.||Notebook computer keyboard system|
|US20050243056 *||15 Mar 2005||3 Nov 2005||Daryl Afshin||Input device for portable computer|
|US20060034038 *||11 Aug 2004||16 Feb 2006||Chunhong Hou||Including additional keys for mobile computers|
|US20060050060 *||13 May 2005||9 Mar 2006||Chih-Ching Chang||Apparatus and method for integrating touch input and portable media player module of notebook computers|
|US20060212635 *||21 Mar 2005||21 Sep 2006||Wenstrand John S||Input devices and methods of operating same|
|US20060281491 *||9 Jun 2005||14 Dec 2006||Primax Electronics Ltd.||Wireless remote control device|
|US20090135139 *||3 Feb 2009||28 May 2009||Intel Corporation||Integrated input and display device for a mobile computer|
|US20120013536 *||19 Jan 2012||Echostar Technologies L.L.C.||Systems and methods for dual use remote-control devices|
|US20120295709 *||22 Nov 2012||Sony Corporation||Haptic device for 3-d gaming|
|US20130147714 *||23 Aug 2011||13 Jun 2013||China Mobile Communications Corporation||Method and device for trackball-based press positioning|
|USRE41443||9 Jan 2006||20 Jul 2010||Alps Electric Co., Ltd.||Input device which allows button input operation and coordinate input operation to be performed in the same operation plane|
|CN101681206B||6 May 2008||26 Feb 2014||英迪股份有限公司||Mouse|
|DE10330773A1 *||8 Jul 2003||28 Apr 2005||Glenn Rolus Borgward||Eingabegerät für portable Digitalcomputer und portabler Digitalcomputer mit variabel einsetzbarer Maus|
|EP1096420A2 *||27 Oct 2000||2 May 2001||Stephen Paul Clarke||Director (data input device)|
|EP2568358A1||8 Jul 2004||13 Mar 2013||Glenn Rolus Borgward||Digital computer and functional module for safeguarding data against access by unauthorized persons|
|EP2573652A1||8 Jul 2004||27 Mar 2013||Glenn Rolus Borgward||Portable digital computer with detachable input devices|
|EP2573653A1||8 Jul 2004||27 Mar 2013||Glenn Rolus Borgward||Computer and functional module for simplified use of a computer by a plurality of users|
|EP2573654A1||8 Jul 2004||27 Mar 2013||Glenn Rolus Borgward||Portable digital computer with functional module coupleable at its rear side|
|EP2573655A1||8 Jul 2004||27 Mar 2013||Glenn Rolus Borgward||Mobile digital computer with a detachable functional module of a multi-functional coupling bay|
|WO2008136626A2 *||6 May 2008||13 Nov 2008||Youn Soo Kim||Mouse|
|U.S. Classification||345/167, 345/163, 708/131|
|International Classification||G06F3/033, G06F1/16|
|Cooperative Classification||G06F1/1616, G06F3/03541, G06F1/169|
|European Classification||G06F1/16P1F, G06F1/16P9P6, G06F3/0354C|
|30 Sep 1996||AS||Assignment|
Owner name: NCR CORPORATION, OHIO
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BLANKENSHIP, JOSEPH H.;RUSH, RONALD A., JR.;REEL/FRAME:008232/0288;SIGNING DATES FROM 19960830 TO 19960916
|23 Apr 2001||FPAY||Fee payment|
Year of fee payment: 4
|23 May 2005||FPAY||Fee payment|
Year of fee payment: 8
|20 Mar 2007||AS||Assignment|
Owner name: TELEDATA SOUND LLC, NEVADA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NCR CORPORATION;REEL/FRAME:019035/0080
Effective date: 20051027
|21 Aug 2009||FPAY||Fee payment|
Year of fee payment: 12